7 citations · 8 across the 7 of their papers we have counts for
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Exact Catalysis Cannot Overcome the Gaussian-Steering Barrier for Remote Wigner Negativity
Sudip Chakrabarty
Gaussian steering sets a sharp threshold for creating Wigner negativity at a distance. A measurement by Bob can make Alice's part of a shared Gaussian state Wigner negative only if…
Measurement-induced remote activation of nonclassicality
Sudip Chakrabarty
Nonclassicality, defined through nonpositivity of quasiprobability distributions such as the Wigner and Kirkwood-Dirac distributions, underlies key quantum advantages. We show that…
Quantifying Margenau--Hill Nonclassicality
Sudip Chakrabarty
Quasiprobability distributions offer a useful way of describing nonclassical features of quantum systems through their departure from classical probability theory. In this work, we…
Operational certification of nonclassicality in arbitrary quantum states from few copies
Sudip Chakrabarty, Bivas Mallick, Ananda G. Maity +1
States with negative Wigner functions constitute a fundamental nonclassical resource underlying quantum advantage. However, their experimental certification typically relies on rec…
Detection of quantum imaginarity using moments and its interferometric realization
Sudip Chakrabarty, Saheli Mukherjee, Ananda G. Maity +1
Complex numbers, intrinsic to the formulation of quantum theory, play a pivotal role in enabling advantages across a broad range of quantum information-processing tasks. Despite th…
Nonlocality in Continuous-Variable Quantum Networks
Sudip Chakrabarty, Amit Kundu, A. S. Majumdar
Quantum networks enable forms of nonlocality beyond the standard Bell scenario, with a multitude of potential applications. Continuous-variable (CV) platforms are particularly attr…
Probing Kirkwood-Dirac nonpositivity and its operational implications via moments
Sudip Chakrabarty, Bivas Mallick, Saheli Mukherjee +1
The Kirkwood-Dirac (KD) distribution has recently emerged as a powerful quasiprobability framework with wide-ranging applications in quantum information processing tasks. In this w…
Efficient detection of nonclassicality using moments of the Wigner function
Bivas Mallick, Sudip Chakrabarty, Saheli Mukherjee +2
States with a negative Wigner function, a significant subclass of nonclassical states, serve as a valuable resource for various quantum information processing tasks. Here, we provi…